Level 4 : GKPQZP 
Level 5 : QRKGTD 
Level 6 : QPDGYM 
Level 7 : QQLGTD 
Level 8 : QXFGTL 
Level 9 : QNMGTK 
Level 10: NPGGYM 
Level 11: NXHGTL 
Level 12: NQBGYD 
Level 13: NQZGPD 
Level 14: NNCGYK 
Level 15: HJXQCN 
Level 16: NYDGTK 
Level 17: NWLGTM 
Level 18: NTFGTB 
Level 19: NRMGTD 
Level 20: BBQQBP 
Level 21: YPHGTM 
Level 22: YRBGTD 
Level 23: YRZGXD 
Level 24: YQCGTD 
Level 25: YSKGPC 
Level 26: BCSQBV 
Level 27: BDVQJQ 
Level 28: YYFGPK 
Level 29: BJRQZN 
Level 30: TRGGTD 
Level 31: JDNQJQ 
Level 32: TXBGTL 
Level 33: ZKTQKP 
Level 34: ZHPQCW 
Level 35: JCXQJV 
Level 36: TVDGTL 
Level 37: TTLGPB 
Level 38: JZWQKX 
Level 39: JMRQCQ 
Level 40: PXGGTL 
Level 41: CHNQBW 
Level 42: CGYQJS 
Level 43: CDTQZQ 
Level 44: CBPQBP 
Level 45: CMXQCQ 
Level 46: CKSQJP 
Level 47: CLVQZV 
Level 48: PPFGYM